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When the receiver is the instance of subclass of `String`.
- `String#each_char`
- `String#each_line`
- `String#partition`
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It used to be an alias to `IO#each_byte` but those methods should have
behave differently.
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Even called for subclass of `Array`, according to new Ruby3.0 behavior.
Other methods of `Array` behave as Ruby3.0 from the first hand.
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Fix symbol leak in `exc_to_s()`
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Fix annotations for inline iseq of `Class.new` [ci skip]
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Introduce `MRB_GC_RED`
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- stop cross building
- add more gems for tests
- add `bintest`
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Avoid ill-advised `goto`
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Following functions are defined in `mrblib/numeric.c`:
- `Integer#ceil`
- `Integer#floor`
- `Integer#round`
- `Integer#truncate`
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- `Random.rand` with `MRB_NO_FLOAT` behaves as `Random.rand(100)`
- `Random.rand(i)` where `i<0` raises `ArgumentError`
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Replaces the magic number `7` except in `src/gc.c`.
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ref #5362
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- `_raw` does not describe the nature of the function
- the function protect errors during C function execution
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shuujii/remove-unused-struct-in-include-mruby-variable.h
Remove unused struct in `include/mruby/variable.h`
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shuujii/remove-unused--include-in-complex.c-and-rational.c
Remove unused `#include` in `complex.c` and `rational.c`
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shuujii/remove-MRB_API-from-mrb_get_backtrace-definition
Remove `MRB_API` from `mrb_get_backtrace` definition
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Introducing the `mrb_protect_raw()` API function
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The purpose is two-fold:
1. to be able to specify a pointer directly when user data is used
When using `mrb_protect()`, it is necessary to allocate objects by `mrb_obj_cptr()` function when using user data.
Adding `mrb_protect_raw()` will make it simpler to reimplement `mrbgems/mruby-error`.
2. to correctly unwind callinfo when an exception is raised from a C function defined as a method (the main topic)
If a method call is made directly under `mrb_protect()` and a C function is called, control is returned from `mrb_protect()` if an exception occurs there.
In this case, callinfo is not restored, so it is out of sync.
Moreover, returning to mruby VM (`mrb_vm_exec()` function) in this state will indicate `ci->pc` of C function which is equal to `NULL`, and subsequent `JUMP` will cause `SIGSEGV`.
Following is an example that actually causes `SIGSEGV`:
- `crash.c`
```c
#include <mruby.h>
#include <mruby/compile.h>
#include <mruby/error.h>
static mrb_value
level1_body(mrb_state *mrb, mrb_value self)
{
return mrb_funcall(mrb, self, "level2", 0);
}
static mrb_value
level1(mrb_state *mrb, mrb_value self)
{
return mrb_protect(mrb, level1_body, self, NULL);
}
static mrb_value
level2(mrb_state *mrb, mrb_value self)
{
mrb_raise(mrb, E_RUNTIME_ERROR, "error!");
return mrb_nil_value();
}
int
main(int argc, char *argv[])
{
mrb_state *mrb = mrb_open();
mrb_define_method(mrb, mrb->object_class, "level1", level1, MRB_ARGS_NONE());
mrb_define_method(mrb, mrb->object_class, "level2", level2, MRB_ARGS_NONE());
mrb_p(mrb, mrb_load_string(mrb, "p level1"));
mrb_close(mrb);
return 0;
}
```
- compile & run
```console
% `bin/mruby-config --cc --cflags --ldflags` crash.c `bin/mruby-config --libs`
% ./a.out
zsh: segmentation fault (core dumped) ./a.out
```
After applying this patch, it will print exception object and exit normally.
The `mrb_protect()`, `mrb_ensure()` and `mrb_rescue_exceptions()` in `mrbgems/mruby-error` have been rewritten using `mrb_protect_raw()`.
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- `mrb_exc_backtrace` to implement `Exception#backtrace`
- `mrb_get_backtrace` to implement `#caller`
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- add comment for unpacking
- avoid saving the symbol in a local variable
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Otherwise we suffer `(unknown):0:` errors.
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On configurations where `sizeof(mrb_int) > sizeof(int)`.
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`MRuby::Presym` no longer needs `Rake::DSL`
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The GitHub Super Linter is a more robust and better supported
tool than the current GitHub Actions we are using.
Running these checks:
ERROR_ON_MISSING_EXEC_BIT: true
VALIDATE_BASH: true
VALIDATE_BASH_EXEC: true
VALIDATE_EDITORCONFIG: true
VALIDATE_MARKDOWN: true
VALIDATE_SHELL_SHFMT: true
VALIDATE_YAML: true
https://github.com/marketplace/actions/super-linter
https://github.com/github/super-linter
Added the GitHub Super Linter badge to the README.
Also updated the pre-commit framework and added
more documentation on pre-commit.
Added one more pre-commit check: check-executables-have-shebangs
Added one extra check for merge conflicts to our
GitHub Actions.
EditorConfig and Markdown linting.
Minor grammar and spelling fixes.
Update linter.yml
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shuujii/fix-enable_debug_info-in-mrbgems-mruby-proc-ext-test-proc.rb
Fix `enable_debug_info?` in `mrbgems/mruby-proc-ext/test/proc.rb`
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Fix incorrect prototype on declaration of mrb_protect_atexit
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mruby/dependabot/github_actions/actions/cache-v2.1.5
build(deps): bump actions/cache from v2.1.4 to v2.1.5
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